Overview
Released by Irem Corp. in 1988, this game is a classic vertical scrolling shooter that challenges players with its intense gameplay and difficulty. Set in a science fiction universe, players pilot a futuristic spacecraft with the ultimate mission to defeat an alien invasion that threatens Earth. Although the game might not have gained significant recognition in terms of mainstream popularity, it holds a special place among retro gaming enthusiasts.
Gameplay
Players start the game by controlling a prototype fighter craft capable of utilizing various weapons and upgrades. As the game progresses, players navigate through several levels filled with enemies, obstacles, and bosses that require strategic maneuvering and precision shooting. The game is renowned for its high difficulty curve, requiring players to master enemy patterns and refine their reflexes.
Game Mechanics and Features
The game introduces a unique feature known as the “Image System,” where players can receive a performance score at the end of each level. This scoring influences the pathways players can take, adding a layer of depth and replayability. The spacecraft comes equipped with a range of weaponry options, including both primary and secondary weapons that can be powered up through in-game pickups and bonuses.
Legacy
While not as widely known as some of Irem’s other titles, this game has been remembered for its challenging gameplay and intricate level design. It has become a point of study for those interested in the evolution of the shooting game genre. Its unique scoring system and varied weapon mechanics inspired later games, contributing to its enduring legacy among fans of retro shooters.



